ACMIB :: systemFilesDirtyBitStatus

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACMIBsystemFilesDirtyBitStatus

systemFilesDirtyBitStatus

Module: ACMIB

OID (symbolic): ACMIB::systemFilesDirtyBitStatus

OID (numeric): 1.3.6.1.4.1.1751.2.18.16.21

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Bit mask for system files: 0: all are clean 1: console.def 2: ecd.def 4: ssid.def 8: cnctn.db 16: iisp.cbr 32: iisp.vbr 64: spvc.db 128: vipr.cfg 256: fwc.def 512: vi.db 1024: iproute.db 2048: atmvuni.db

What is systemFilesDirtyBitStatus?

This read-only OID is a bitmask (0–4096) showing which system files have unsaved changes and need to be written to disk. You monitor this during system startup to verify the boot process completed successfully and all critical files are synchronized. A value of 0 means all files are clean; a value of 5 means both console.def and ssid.def have pending changes.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.16.21
snmpwalk -v2c -c public <target> ACMIB::systemFilesDirtyBitStatus

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.16.21.1
snmpget -v2c -c public <target> ACMIB::systemFilesDirtyBitStatus.1

Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::systemFilesDirtyBitStatus OID value, configure state conditions and alerts, and monitor any Lucent/Nortel Access Concentrator (legacy) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1751lucentACMIB
1.3.6.1.4.1.1751.2mibsACMIB
1.3.6.1.4.1.1751.2.18acMIBACMIB
1.3.6.1.4.1.1751.2.18.16sysControlACMIB
1.3.6.1.4.1.1751.2.18.16.21systemFilesDirtyBitStatusACMIB